Add plasma store benchmark for small objects (#9549)

Author: suquark

python/ray/ray_perf.py

@@ -1,6 +1,7 @@
 """This is the script for `ray microbenchmark`."""
 
 import asyncio
+import json
 import logging
 import os
 import time
@@ -108,10 +109,13 @@ def main():
     check_optimized_build()
 
     print("Tip: set TESTS_TO_RUN='pattern' to run a subset of benchmarks")
-    ray.init()
+
+    ray.init(
+        _internal_config=json.dumps({
+            "put_small_object_in_memory_store": True
+        }))
 
     value = ray.put(0)
-    arr = np.zeros(100 * 1024 * 1024, dtype=np.int64)
 
     def get_small():
         ray.get(value)
@@ -123,11 +127,6 @@ def put_small():
 
     timeit("single client put calls", put_small)
 
-    def put_large():
-        ray.put(arr)
-
-    timeit("single client put gigabytes", put_large, 8 * 0.1)
-
     @ray.remote
     def do_put_small():
         for _ in range(100):
@@ -138,6 +137,26 @@ def put_multi_small():
 
     timeit("multi client put calls", put_multi_small, 1000)
 
+    ray.shutdown()
+    ray.init(
+        _internal_config=json.dumps({
+            "put_small_object_in_memory_store": False
+        }))
+
+    value = ray.put(0)
+    arr = np.zeros(100 * 1024 * 1024, dtype=np.int64)
+
+    timeit("single client get calls (Plasma Store)", get_small)
+
+    timeit("single client put calls (Plasma Store)", put_small)
+
+    timeit("multi client put calls (Plasma Store)", put_multi_small, 1000)
+
+    def put_large():
+        ray.put(arr)
+
+    timeit("single client put gigabytes", put_large, 8 * 0.1)
+
     @ray.remote
     def do_put():
         for _ in range(10):